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67348192091 = 19137127720261
BaseRepresentation
bin111110101110010000…
…111101101101011011
320102211121111122021212
4332232100331231123
52100412114121331
650534521253335
74602644121155
oct765620755533
9212747448255
1067348192091
1126620331594
121107693424b
136473c3544b
14338c769ad5
151b428e9d2b
hexfae43db5b

67348192091 has 16 divisors (see below), whose sum is σ = 71469747360. Its totient is φ = 63285108480.

The previous prime is 67348192073. The next prime is 67348192111. The reversal of 67348192091 is 19029184376.

It is a cyclic number.

It is not a de Polignac number, because 67348192091 - 210 = 67348191067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67348192391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3313901 + ... + 3334161.

It is an arithmetic number, because the mean of its divisors is an integer number (4466859210).

Almost surely, 267348192091 is an apocalyptic number.

67348192091 is a deficient number, since it is larger than the sum of its proper divisors (4121555269).

67348192091 is a wasteful number, since it uses less digits than its factorization.

67348192091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21694.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 67348192091 in words is "sixty-seven billion, three hundred forty-eight million, one hundred ninety-two thousand, ninety-one".

Divisors: 1 19 137 1277 2603 20261 24263 174949 384959 2775757 3324031 25873297 52739383 491592643 3544641689 67348192091